All your missed questions are saved
automatically for extra practice.
It's a practice test that's automatically made up of all your missed questions. Once you finish this test, you’ll be able to revisit your Challenge Bank™ to practice and sharpen your skills.
View All PlansAdding difficult questions to Challenge Bank™ is an exclusive Premium feature. Unlock access to 650+ exam-like questions, a Pass Guarantee, personalized study plans, and more.
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To start a career as a tanker driver in the Sooner State, you’ll need a Class A or Class B CDL (Commercial Driver’s License) with the Tank Vehicles (N) endorsement. Since most tankers are equipped with air brakes, you should consider removing the L restriction from your CDL as well. You can do that by passing the official air brakes knowledge exam and your CDL skills tests in a tanker equipped with air brakes. This opens more employment opportunities and future-proofs your skills. We will help you ace all of your theory exams by providing you with access to our practice tests.
This particular practice test closely reflects the content and format of the official tanker vehicles knowledge test. It is the second test in our Oklahoma CDL Tanker Vehicles Practice Test series. You get unlimited attempts and nonstop access to train as often as your schedule allows. All questions are based on Section 8 (Tank Vehicles) of the official Commercial Driver’s License Manual (Oklahoma CDL Handbook 2026), a comprehensive resource published by the DPS.
As a tanker driver, you must know how to handle emergency situations. When you’re hauling aviation fuel or agricultural chemicals, there’s no room for error. That’s why you shouldn’t rush your learning phase. During this time, you build the foundation for your driving skills. When you train with our practice tests, you will receive detailed explanations that help you understand the reasoning behind each correct answer. This feedback is provided immediately after you select an answer. Before you proceed to the next question, we recommend noting this feedback in a notebook or notebook app for future reference.
M.S., Chief Educational Researcher (ACES member)
Last verified for accuracy on
The average pass rate for this practice test is 71%. 6 aspiring tanker drivers are currently in a practice session, sharpening their knowledge one question at a time. You can begin your first session right away. With unlimited attempts, you are free to repeat this test as often as you need. Ace all of your theory exams on your first attempt by adding our Free Oklahoma CDL Permit Practice Test and Free Oklahoma CDL Air Brakes Practice Test to your study routine.
Driver’s Ed is - nobody wants to set foot inside the DPS. That’s why millions of learners trust us for simple, visual, effective prep.
We are an officially recognized FMCSA Entry-Level Driver Training provider and a proud partner to over 2,500 libraries. We work with safety organizations like GHSA and the National Safety Council to help create safer roads for everyone.
Our trademarked system automatically saves questions you miss, creating personalized tests that target your weak spots until you’ve mastered the material.
Get smarter as you study. Our new AI-powered feedback provides detailed, question-level insights to help you understand the why behind each answer.
Go beyond the boring black-and-white manual. Our interactive handbook lets you read, listen with an MP3 audio version, or even chat with it to find the information you need, faster.
We build our practice questions from the current 2026 OK Driver Handbook and refine them using patterns recent test‑takers report.
Driver handbook • Knowledge‑test/permit overview • Fees & ID requirements • Office/appointment info
We mirror recurring themes (e.g., right‑of‑way traps, sign look‑alikes) and use similar distractors and wording styles.
We don’t collect or publish actual test items and we’re not affiliated with DPS.
